Helma NG provides a unified Storage API that provides mapping of native JavaScript objects to various database backends. Currently supported backends are:
- helma/storage/filestore - simple file store using JSON
- helma/storage/memstore - in memory database
- helma/storage/googlestore - Google App Engine datastore
Storage module for Hibernate, Berkeley DB, and other database backends are also in the works, but not included with Helma NG at this time.
The Helma Storage API supports one-to-one, one-to-many and many-to-many relationships using plain JavaScript object references and arrays.
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